Why Do people still try to "Understand" Islam?

Over the last 1400 years, 270 million non-believers have been murdered by Muslim jihadists. Islam destroyed the Christian Middle East and Christian North Africa. It is estimated that upwards of 60 million Christians were slaughtered during this conquest. Also, half the Hindu civilization was annihilated and 80 million Hindus murdered. Islamic jihad also destroyed over 10 million Buddhists. In other words, Islam is a killing machine. The tenets of Islam are disgusting as is Sharia law. Nothing good comes from Islam. Only hate, intolerance and violence